如图所示的电路中电压u保持不变电阻r1=2r2开关s断开时电流表的示数为i1开关s闭合时电流表的示数为i2则开关s闭合时流过 Sketch Coloring Page

如图所示的电路中电压u保持不变电阻r1=2r2开关s断开时电流表的示数为i1开关s闭合时电流表的示数为i2则开关s闭合时流过 Template

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tomski如图所示的电路中电压u保持不变电阻r1=2r2开关s断开时电流表的示数为i1开关s闭合时电流表的示数为i2则开关s闭合时流过 coloring

如图甲的电路中，电源电压保持不变，闭合开关后，�片P由b端移到a端，电流表示数I与电压表示数U的变化关系如图乙，则可判断电源电压是 V，定值 sketch template

百度教育 sketch template

人教版物理九年级上第十七章第二节细化知识点同步练习——欧姆定律的图像问题（1）在线组卷 sketch template

如图所示，电源电压恒为18V，定值电阻R1=20Ω，�动变阻器R2标有“40Ω 05A”，电流表A的量程为006A，电压表量程为0 sketch template

如图所示电路中电源电压保持不变在甲图中闭合开关S，电压表示数为4V，电流表示数为04A；百度知道 sketch template

题目在如图所示的电路中电阻R1=8ΩR2=4Ω电源电压保持不变当开关S1S3断开S2闭合时电流表的示数为05A电源电压为 sketch template

如图所示的电路中，电源电压保持不变。闭合开关S后，�片P从b端移动到a端的过程，电压表示数U与电流表示数I的关系图像如图所示。下列说法正确的是（ sketch template

如图1所示的电路中R1为定值电阻R2为�动变阻器电源电压不变．闭合开关S后�片P从a端移动到b端电流表示数I与电压表示数U的变化关系 sketch template

如图电源电压保持不变闭合开关S电路正常工作缓慢移动�片由a到b电压表示数将变小选填“变大 “变小或“不变 继续缓慢移动�片由 sketch template

题目如图所示的电路中电源电压保持不变R1为�动变阻器R2为定值电阻闭合开关 S 后�片从最左端�右移动到中点的过程中下列说法 sketch template

如图所示的电路中电压U保持恒定当K断开时安培表的读数是 A．A1变大A2不变B．A1变小A2不变C．A1不变A2变小 D．A1不 sketch template

如图a所示的电路中电源电压保持不变闭合开关s后�动变阻器的�片P由B端移动到A端时测得电阻R1两端的电压与通过电阻R1的电流的变化关系 sketch template

如图2所示电路，当开关S闭合后，L1、L2均能�光，电流表、电压表均有示数．过一会儿，两灯都不�光．电流表、电压表的示数均为零，可能�生的故障 sketch template

如图是小华同学探究“电流与电压关系”的电路图。 sketch template

如图所示的电路中电源两端的电压保持不变．闭合开关S将�动变阻器的�片P�右移动下列说法正确的是 A．电压表V1示数不变V2示数变大 sketch template

题目如图所示的电路中电源电压不变R1 为定值电阻R2为�动变阻器闭合开关 S 后在�片P从最左端�中点移动的过程中下列说法正确 sketch template

如图2所示的电路中电源电压不变开关闭合后若�动变阻器的�片P�右端移动则 A电压表的示数和电流表的示数都增大 B电压表的示数和电流 sketch template

如图所示电路中电源电压保持不变闭合开关S后将�动变阻器R2的�片P�右移动在此过程中 A．电流表A示数变大电压表V2示数变小B．电流 sketch template

如图所示的电路中电源的电压保持不变R1为定值电阻R2为�动变阻器闭合开关S�片P�右移动时则A．电流表A的示数变大B．电压表V的示 sketch template

如图所示的电路中电源电压U=45V且保持不变电阻R1=5Ω变阻器R2的最大阻值为20Ω电流表量程为0 06A电压表的量程为0 sketch template

如图a所示的电路中电源电压保持不变闭合开关S后�动变阻器的�片P由a端移动到b端时测得电阻R两端的电压U与通过R的电流I的变化关系 sketch template

如图所示的电路中电压U保持不变电阻R1=2R2开关s断开时电流表的示数为I1开关S闭合时电流表的示数为I2则开关S闭合时流过 sketch template

如图所示的电路中电源电压保持不变当开关闭合�片由b端�a端移动的过程中以下说法正确的是 A．电压表的示数减小电流表的示数增大B sketch template

如图所示的电路中电源电压保持不变．当�动变阻器的�片P�右�动时 电流表和电压表的示数变化情况是 A．电流表和电压表的示数都变大 sketch template

如图所示的电路中电源两端的电压保持不变闭合开关SS1当�片P 移至�动变阻器R2的A端时电压表V1的示数为U1电压表V2的示数为 sketch template

12． 如图所示的电路中电源电压不变闭合电键K电路正常工作．过了一会儿两电表示数都变大则该电路中出现的故障可能是 A．灯L短路 B sketch template

如图所示的电路中电源两端电压为6V并保持不变．定值电阻R1的阻值为100Ω�动变阻器R2的最大阻值为50Ω．当开关S闭合�动变阻器的�片P sketch template

题目如图所示电路中电源电压保持不变闭合开关S后将�动变阻器R的�片P�左移动在此过程中 A电压表V1示数变小电压表V2示 sketch template

如图所示的电路中电源电压保持12伏不变开关S闭合时．电流表A的示数为03安开关S断开时．电流表A的示数为01安．求1R1和R2 sketch template

如图所示的电路中电源电压保持不变．当开关S断开时电压表示数为3V．当开关S闭合时电压表示数为12V．开关闭合时电源电压是3V灯L1 sketch template

如图所示的电路中电源电压保持不变R为定值电阻当开关闭合时标有“6V 3W 的小灯泡L恰好正常�光若保持R不变将L换成另一只标有 sketch template

在如图所示的电路中电源电压保持不变电流表的量程分别为0 06安和0 3安电压表的量程分别为0 3伏和0 15伏电阻R1和R2的阻值 sketch template

如图所示的电路中电源两端的电压保持不变当�动变阻器的�片P�到c位置时电压表示数为4V灯L正常�光当�片P�到b端时电压表示数为 sketch template

在如图所示的电路中电源电压保持不变电阻R1的阻值为10Ω�动变阻器R2标有“5Ω 3A 字样闭合开关S当�动变阻的�片P�左移动时 sketch template

如图所示的电路中电源电压保持不变电阻R1=60Ω．闭合开关S移动�动变阻器的�片P当电流表的示数为02A时�动变阻器消耗的电功率为 sketch template

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